content: /* -------------------
   * SelectionDemo4.java
   * -------------------
   * (C) Copyright 2004-2013, by Object Refinery Limited.
   *
   */
  
  package org.jfree.chart.demo.selection;
  
  import java.awt.BorderLayout;
  import java.awt.Color;
  import java.util.Random;
  
  import javax.swing.BorderFactory;
  import javax.swing.JPanel;
  import javax.swing.JScrollPane;
  import javax.swing.JSplitPane;
  import javax.swing.JTable;
  import javax.swing.border.EmptyBorder;
  import javax.swing.border.TitledBorder;
  import javax.swing.table.DefaultTableModel;
  
  import org.jfree.chart.ChartFactory;
  import org.jfree.chart.ChartPanel;
  import org.jfree.chart.JFreeChart;
  import org.jfree.chart.axis.NumberAxis;
  import org.jfree.chart.panel.selectionhandler.EntitySelectionManager;
  import org.jfree.chart.panel.selectionhandler.FreePathSelectionHandler;
  import org.jfree.chart.panel.selectionhandler.MouseClickSelectionHandler;
  import org.jfree.chart.panel.selectionhandler.RegionSelectionHandler;
  import org.jfree.chart.plot.XYPlot;
  import org.jfree.chart.renderer.item.IRSUtilities;
  import org.jfree.chart.renderer.xy.StandardXYBarPainter;
  import org.jfree.chart.renderer.xy.XYBarRenderer;
  import org.jfree.chart.ui.ApplicationFrame;
  import org.jfree.chart.ui.RefineryUtilities;
  import org.jfree.data.extension.DatasetIterator;
  import org.jfree.data.extension.DatasetSelectionExtension;
  import org.jfree.data.extension.impl.DatasetExtensionManager;
  import org.jfree.data.extension.impl.XYCursor;
  import org.jfree.data.extension.impl.XYDatasetSelectionExtension;
  import org.jfree.data.general.Dataset;
  import org.jfree.data.general.SelectionChangeEvent;
  import org.jfree.data.general.SelectionChangeListener;
  import org.jfree.data.statistics.HistogramDataset;
  import org.jfree.data.statistics.SimpleHistogramBin;
  import org.jfree.data.statistics.SimpleHistogramDataset;
  import org.jfree.data.xy.IntervalXYDataset;
  
  /**
   * A demo of the {@link HistogramDataset} class.
   */
  public class SelectionDemo4 extends ApplicationFrame implements
            SelectionChangeListener<XYCursor> {
  
      private SimpleHistogramDataset dataset;
      private DefaultTableModel model;
      private JTable table;
  
      /**
       * Creates a new demo.
       * 
       * @param title  the frame title.
       */
      public SelectionDemo4(String title) {
          super(title);
          ChartPanel chartPanel = (ChartPanel) createDemoPanel();
          chartPanel.setPreferredSize(new java.awt.Dimension(500, 270));
  
          JFreeChart chart = chartPanel.getChart();
          XYPlot plot = (XYPlot) chart.getPlot();
          this.dataset = (SimpleHistogramDataset) plot.getDataset();
          JSplitPane split = new JSplitPane(JSplitPane.HORIZONTAL_SPLIT);
          split.add(chartPanel);
            
          this.model = new DefaultTableModel(new String[] { "Item:",
                      "Bin Start:", "Bin End:", "Value:" }, 0);
          this.table = new JTable(this.model);
          JPanel p = new JPanel(new BorderLayout());
          JScrollPane scroller = new JScrollPane(this.table);
          p.add(scroller);
          p.setBorder(BorderFactory.createCompoundBorder(new TitledBorder(
                      "Selected Items: "), new EmptyBorder(4, 4, 4, 4)));
          split.add(p);
          setContentPane(split);
      }
       
      /**
       * The selection changed, so we change the table model.
       * 
       * @param event
       */
      public void selectionChanged(SelectionChangeEvent<XYCursor> event) {
          while (this.model.getRowCount() > 0) {
              this.model.removeRow(0);
          }
  
          XYDatasetSelectionExtension ext = (XYDatasetSelectionExtension) event
                  .getSelectionExtension();
          DatasetIterator<XYCursor> iter = ext.getSelectionIterator(true);
  
          while (iter.hasNext()) {
              XYCursor dc = iter.next();
              this.model.addRow(new Object[] { new Integer(dc.item),
                      this.dataset.getStartX(dc.series, dc.item),
                      this.dataset.getEndX(dc.series, dc.item),
                      this.dataset.getY(dc.series, dc.item) });
          }
      }
  
      /**
       * Creates a sample {@link HistogramDataset}.
       * 
       * @return the dataset.
       */
      private static IntervalXYDataset createDataset() {
          SimpleHistogramDataset dataset = new SimpleHistogramDataset("H1");
          double lower = 0.0;
          for (int i = 0; i < 100; i++) {
              double upper = (i + 1) / 10.0;
              SimpleHistogramBin bin = new SimpleHistogramBin(lower, upper, true,
                         false);
              dataset.addBin(bin);
              lower = upper;
          }
          double[] values = new double[1000];
          Random generator = new Random(12345678L);
          for (int i = 0; i < 1000; i++) {
               values[i] = generator.nextGaussian() + 5;
          }
          dataset.addObservations(values);
          return dataset;
      }
  
      /**
       * Creates a chart.
       * 
       * @param dataset  a dataset.
       * 
       * @return The chart.
       */
      private static JFreeChart createChart(IntervalXYDataset dataset, 
              DatasetSelectionExtension<XYCursor> ext) {
          JFreeChart chart = ChartFactory.createHistogram("SelectionDemo4", null,
                    null, dataset);
          XYPlot plot = (XYPlot) chart.getPlot();
          plot.setDomainPannable(true);
          plot.setRangePannable(true);
          plot.setForegroundAlpha(0.85f);
          NumberAxis yAxis = (NumberAxis) plot.getRangeAxis();
          yAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
          XYBarRenderer renderer = (XYBarRenderer) plot.getRenderer();
          renderer.setDrawBarOutline(true);
          renderer.setDefaultOutlinePaint(Color.red);
          renderer.setBarPainter(new StandardXYBarPainter());
          renderer.setShadowVisible(false);
            
          //add selection specific rendering
          IRSUtilities.setSelectedItemPaint(renderer, ext, Color.white);
            
          //register plot as selection change listener
          ext.addChangeListener(plot);
            
          return chart;
      }
  
      /**
       * Creates a panel for the demo (used by SuperDemo.java).
       * 
       * @return A panel.
       */
      public final JPanel createDemoPanel() {
          IntervalXYDataset xydataset = createDataset();
          //extend dataset and add selection change listener for the demo
          DatasetSelectionExtension<XYCursor> datasetExtension 
                  = new XYDatasetSelectionExtension(xydataset);     
          datasetExtension.addChangeListener(this);
            
          //standard setup
          JFreeChart chart = createChart(xydataset, datasetExtension);
          ChartPanel panel = new ChartPanel(chart);
          panel.setMouseWheelEnabled(true);
  
          // add a selection handler
          RegionSelectionHandler selectionHandler 
                  = new FreePathSelectionHandler();
          panel.addMouseHandler(selectionHandler);
          panel.addMouseHandler(new MouseClickSelectionHandler());
          panel.removeMouseHandler(panel.getZoomHandler());
            
          // add a selection manager with intersection selection
          DatasetExtensionManager dExManager = new DatasetExtensionManager();
          dExManager.registerDatasetExtension(datasetExtension);
            
          EntitySelectionManager selectionManager = new EntitySelectionManager(
                  panel, new Dataset[] { xydataset }, dExManager);
          selectionManager.setIntersectionSelection(true);
          panel.setSelectionManager(selectionManager);
            
          return panel;
      }
  
      /**
       * The starting point for the demo.
       * 
       * @param args  ignored.
       */
      public static void main(String[] args) {
          SelectionDemo4 demo = new SelectionDemo4(
                    "JFreeChart: SelectionDemo4.java");
          demo.pack();
          RefineryUtilities.centerFrameOnScreen(demo);
          demo.setVisible(true);
      }
  
  }
  